[ 1506.283388][T28399] gre: GRE over IPv4 demultiplexer driver
[ 1506.741777][T28422] ip_gre: GRE over IPv4 tunneling driver
[ 1522.310893][T28995] ip6_gre: GRE over IPv6 tunneling driver
[ 1532.502145][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1534.487108][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1536.343112][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1538.326116][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!